Home / 100,351.24-151,029.67-75,519.88

Finding the Fourth Proportional to 100,351.24, 151,029.67 and 75,519.88

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Solution

The fourth proportional to 100,351.24, 151,029.67 and 75,519.88 is: 113,658.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,351.24 : 151,029.67 = 75,519.88 : x
  2. Step 2: Convert to fraction form
    100,351.24/151,029.67 = 75,519.88/x
  3. Step 3: Cross multiply
    100,351.24x = 151,029.67 × 75,519.88
  4. Step 4: Simplify right side
    100,351.24x = 11,405,742,554.84
  5. Step 5: Solve for x
    x = 11,405,742,554.84/100,351.24
  6. Step 6: Final answer
    x = 113,658.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.